Kulapa Suaprae และ Kajit Jittasevi. (2007) Regionalism in Europe and in East Asia :. Faculty of Political Science, Thammasat University,:ม.ป.ท.Kulapa Suaprae และ Kajit Jittasevi. 2007. Regionalism in Europe and in East Asia :. ม.ป.ท.:Faculty of Political Science, Thammasat University,;Kulapa Suaprae และ Kajit Jittasevi. Regionalism in Europe and in East Asia :. ม.ป.ท.:Faculty of Political Science, Thammasat University, 2007. Print.